Weather Records on 1 August 2011

1,191 weather records were set or tied worldwide on 1 August 2011. Highest significance: Richmond, US.

Key Facts for 1 August 2011

On 1 August 2011, 1,191 weather records were set or tied at long-record stations worldwide.
736 were record highs and 213 were record lows, counting maximum and minimum temperature.
By timescale, 14 were all-time records, 83 monthly and 1,094 daily.
Richmond set a daily record precipitation of 43.2 mm (1.7 in) on 1 August 2011.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 437 records.

Record Map

1,191 stations

1,191 station records on 1 August 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 August 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Richmond	United States	Record daily precipitation	43.2 mm (1.7 in)	72 of 100 (Major)
Idaho Falls 16 SE	United States	Record daily precipitation	44.4 mm (1.7 in)	65 of 100 (Major)
Glenwood 2WNW	United States	Record daily precipitation	91.9 mm (3.6 in)	63 of 100 (Major)
Fargo Hector Intl AP	United States	Record daily precipitation	72.9 mm (2.9 in)	55 of 100 (Notable)
Hoglekardalen	Sweden	Record daily precipitation	53.5 mm (2.1 in)	54 of 100 (Notable)
Randolph	United States	Record daily precipitation	26.4 mm (1.0 in)	54 of 100 (Notable)
Ft Grant	United States	Record daily precipitation	34.5 mm (1.4 in)	53 of 100 (Notable)
Iturbide	Mexico	Record daily precipitation	69.9 mm (2.8 in)	52 of 100 (Notable)
Meade	United States	Record high minimum temperature	27.8 C (82.0 F)	52 of 100 (Notable)
Mt Gilead 4 W	United States	Record daily precipitation	72.1 mm (2.8 in)	52 of 100 (Notable)
Tyler Pounds Fld	United States	Record high minimum temperature	28.3 C (82.9 F)	52 of 100 (Notable)
Hillsboro	United States	Record high minimum temperature	27.8 C (82.0 F)	51 of 100 (Notable)
Trenton	United States	Record daily precipitation	34.3 mm (1.4 in)	51 of 100 (Notable)
Williamston 1 E	United States	Record daily precipitation	78.7 mm (3.1 in)	50 of 100 (Notable)
Effingham	United States	Record daily precipitation	99.6 mm (3.9 in)	50 of 100 (Notable)
Franklin Basin	United States	Record daily precipitation	30.5 mm (1.2 in)	49 of 100 (Notable)
Papantla	Mexico	Record daily precipitation	79.5 mm (3.1 in)	48 of 100 (Notable)
Trubcevsk	Russia	Record daily precipitation	45.9 mm (1.8 in)	48 of 100 (Notable)
Louisburg	United States	Record daily precipitation	49.3 mm (1.9 in)	48 of 100 (Notable)
Ft Davis	United States	Record high minimum temperature	20.0 C (68.0 F)	48 of 100 (Notable)
Tukan	Russia	Record daily precipitation	44.7 mm (1.8 in)	47 of 100 (Notable)
Gatesville	United States	Record high minimum temperature	27.8 C (82.0 F)	47 of 100 (Notable)
Lynx Pass	United States	Record daily precipitation	25.4 mm (1.0 in)	47 of 100 (Notable)
Gudermes	Russia	Record high minimum temperature	29.4 C (84.9 F)	46 of 100 (Notable)
Cooperstown	United States	Record daily precipitation	92.7 mm (3.6 in)	46 of 100 (Notable)
El Remolino (Cfe)	Mexico	Record daily precipitation	79.2 mm (3.1 in)	45 of 100 (Notable)
Pearce - Sunsites	United States	Record daily precipitation	47.0 mm (1.9 in)	45 of 100 (Notable)
Astrakan	Russia	Record high minimum temperature	27.9 C (82.2 F)	44 of 100 (Notable)
Monticello 5 SE	United States	Record high minimum temperature	23.9 C (75.0 F)	44 of 100 (Notable)
Ben Lomond Peak	United States	Record daily precipitation	76.2 mm (3.0 in)	44 of 100 (Notable)
Tony Grove Lake	United States	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Dar Es Salaam Airpo	Tanzania	Record low minimum temperature	10.8 C (51.4 F)	43 of 100 (Notable)
Mt Vernon	United States	Record high minimum temperature	26.1 C (79.0 F)	43 of 100 (Notable)
Cambridge	United States	Record daily precipitation	48.8 mm (1.9 in)	43 of 100 (Notable)
Hachijojima	Japan	Record daily precipitation	166.1 mm (6.5 in)	42 of 100 (Notable)
Altotonga	Mexico	Record high minimum temperature	16.7 C (62.1 F)	42 of 100 (Notable)
Collegeville St John's	United States	Record daily precipitation	34.3 mm (1.4 in)	42 of 100 (Notable)
Stoneville Exp STN	United States	Record high minimum temperature	27.8 C (82.0 F)	42 of 100 (Notable)
Missoula 6 NW WFO	United States	Record high minimum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Alexandria Chandler Fld	United States	Record daily precipitation	63.0 mm (2.5 in)	42 of 100 (Notable)
Tribsees	Germany	Record daily precipitation	33.4 mm (1.3 in)	41 of 100 (Notable)
Paveletz	Russia	Record daily precipitation	42.8 mm (1.7 in)	41 of 100 (Notable)
Walden	United States	Record high minimum temperature	11.7 C (53.1 F)	41 of 100 (Notable)
Koloa Mauka 994	United States	Record daily precipitation	77.5 mm (3.1 in)	41 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record high minimum temperature	13.5 C (56.3 F)	40 of 100 (Notable)
Armeria	Mexico	Record daily precipitation	82.3 mm (3.2 in)	40 of 100 (Notable)
Ust-Judoma	Russia	Record high maximum temperature	37.7 C (99.9 F)	40 of 100 (Notable)
Hancock Exp Farm	United States	Record high minimum temperature	25.6 C (78.1 F)	40 of 100 (Notable)
Ocozocoautla	Mexico	Record low maximum temperature	23.9 C (75.0 F)	39 of 100 (Notable)
Aldama (Dge)	Mexico	Record low minimum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Medicine Lake 3 SE	United States	Record high minimum temperature	22.2 C (72.0 F)	39 of 100 (Notable)
Eureka	United States	Record high minimum temperature	25.0 C (77.0 F)	39 of 100 (Notable)
Cutler Dam	United States	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Emigrant Summit	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
Palestine 2 NE	United States	Record high minimum temperature	26.7 C (80.1 F)	39 of 100 (Notable)
Newton Rigg	United Kingdom	Record high minimum temperature	15.7 C (60.3 F)	38 of 100 (Notable)
Gravette	United States	Record high maximum temperature	42.8 C (109.0 F)	38 of 100 (Notable)
Okmulgee Wtr Wks	United States	Record high maximum temperature	43.3 C (109.9 F)	38 of 100 (Notable)
Pavillion	United States	Record high minimum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Wichita Falls Muni AP	United States	Record high minimum temperature	27.8 C (82.0 F)	38 of 100 (Notable)

Counts by Type and Timescale

1,191 records

Records set or tied on 1 August 2011 by type: Highest daily maximum 324, Lowest daily maximum 140, Highest daily minimum 412, Lowest daily minimum 73, Heaviest daily rainfall 242.

Records on 1 August 2011 by type
Record type	Records
Highest daily maximum	324
Lowest daily maximum	140
Highest daily minimum	412
Lowest daily minimum	73
Heaviest daily rainfall	242
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 August 2011 by timescale: all-time 14, monthly 83, daily 1,094.

How Much Records Were Beaten By

824 broken records

Margins by which the 824 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 75.6. Ties are not counted.

Top 20 by Significance

1 August 2011

Top 20 records on 1 August 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 August 2011	Richmond, US	daily rain	43.2 mm (1.7 in)	22.6 mm (0.9 in)	98 years	72 of 100 (Major)
1 August 2011	Idaho Falls 16 SE, US	monthly rain	44.4 mm (1.7 in)	20.5 mm (0.8 in)	34 years	65 of 100 (Major)
1 August 2011	Glenwood 2WNW, US	daily rain	91.9 mm (3.6 in)	53.8 mm (2.1 in)	44 years	63 of 100 (Major)
1 August 2011	Fargo Hector Intl AP, US	daily rain	72.9 mm (2.9 in)	34.0 mm (1.3 in)	60 years	55 of 100 (Notable)
1 August 2011	Hoglekardalen, SE	daily rain	53.5 mm (2.1 in)	33.0 mm (1.3 in)	46 years	54 of 100 (Notable)
1 August 2011	Randolph, US	daily rain	26.4 mm (1.0 in)	17.0 mm (0.7 in)	26 years	54 of 100 (Notable)
1 August 2011	Ft Grant, US	daily rain	34.5 mm (1.4 in)	19.3 mm (0.8 in)	76 years	53 of 100 (Notable)
1 August 2011	Iturbide, MX	daily rain	69.9 mm (2.8 in)	50.1 mm (2.0 in)	36 years	52 of 100 (Notable)
1 August 2011	Meade, US	daily high min	27.8 C (82.0 F)	3.4 C (6.1 F)	113 years	52 of 100 (Notable)
1 August 2011	Mt Gilead 4 W, US	daily rain	72.1 mm (2.8 in)	43.1 mm (1.7 in)	58 years	52 of 100 (Notable)
1 August 2011	Tyler Pounds Fld, US	monthly high min	28.3 C (82.9 F)	0.5 C (0.9 F)	126 years	52 of 100 (Notable)
1 August 2011	Hillsboro, US	monthly high min	27.8 C (82.0 F)	0.6 C (1.1 F)	110 years	51 of 100 (Notable)
1 August 2011	Trenton, US	daily rain	34.3 mm (1.4 in)	32.0 mm (1.3 in)	16 years	51 of 100 (Notable)
1 August 2011	Williamston 1 E, US	daily rain	78.7 mm (3.1 in)	32.2 mm (1.3 in)	80 years	50 of 100 (Notable)
1 August 2011	Effingham, US	daily rain	99.6 mm (3.9 in)	38.6 mm (1.5 in)	60 years	50 of 100 (Notable)
1 August 2011	Franklin Basin, US	daily rain	30.5 mm (1.2 in)	25.4 mm (1.0 in)	20 years	49 of 100 (Notable)
1 August 2011	Papantla, MX	daily rain	79.5 mm (3.1 in)	63.5 mm (2.5 in)	42 years	48 of 100 (Notable)
1 August 2011	Trubcevsk, RU	daily rain	45.9 mm (1.8 in)	27.0 mm (1.1 in)	29 years	48 of 100 (Notable)
1 August 2011	Louisburg, US	daily rain	49.3 mm (1.9 in)	14.0 mm (0.6 in)	101 years	48 of 100 (Notable)
1 August 2011	Ft Davis, US	daily high min	20.0 C (68.0 F)	1.7 C (3.1 F)	106 years	48 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1797 to 2011

Records set or tied on this calendar date in each year from 1797 to 2011. 2011 had 1,191 records.

Counts for years before the ledger starts come from the same station rules.

Records on 08-01 in each year
Year	Records
1797	1
1816	2
1829	1
1833	1
1834	2
1836	1
1838	1
1842	1
1851	1
1856	1
1858	3
1859	1
1861	1
1862	1
1863	1
1865	1
1868	1
1869	2
1873	1
1874	1
1875	3
1876	1
1878	1
1879	1
1881	3
1883	1
1886	2
1887	1
1890	1
1891	7
1892	4
1893	3
1894	1
1895	3
1896	4
1897	2
1898	3
1899	1
1900	1
1901	3
1902	5
1903	19
1904	10
1905	12
1906	18
1907	13
1908	18
1909	15
1910	30
1911	46
1912	49
1913	25
1914	17
1915	49
1916	16
1917	108
1918	55
1919	32
1920	101
1921	87
1922	44
1923	203
1924	93
1925	281
1926	252
1927	266
1928	132
1929	161
1930	252
1931	362
1932	408
1933	487
1934	448
1935	547
1936	636
1937	492
1938	523
1939	335
1940	333
1941	341
1942	388
1943	398
1944	410
1945	975
1946	336
1947	401
1948	354
1949	324
1950	552
1951	420
1952	391
1953	565
1954	462
1955	796
1956	441
1957	270
1958	389
1959	352
1960	677
1961	404
1962	602
1963	270
1964	883
1965	669
1966	383
1967	250
1968	625
1969	453
1970	482
1971	1,135
1972	609
1973	766
1974	526
1975	915
1976	886
1977	636
1978	706
1979	580
1980	906
1981	668
1982	742
1983	931
1984	532
1985	987
1986	846
1987	999
1988	880
1989	1,301
1990	927
1991	740
1992	1,024
1993	907
1994	1,217
1995	1,513
1996	1,118
1997	904
1998	1,281
1999	1,707
2000	1,020
2001	1,079
2002	1,249
2003	1,155
2004	740
2005	878
2006	1,655
2007	746
2008	795
2009	932
2010	1,182
2011	1,191
2012	850
2013	542
2014	853
2015	864
2016	499
2017	758
2018	987
2019	479
2020	838
2021	1,009
2022	915
2023	627
2024	879
2025	785
2026	1,086

Download the Data

Data for records on 2011-08-01: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 10	736
10 to 20	39
20 to 30	21
30 to 40	16
40 to 50	5
50 to 60	4
60 to 70	2
70 to 80	1